dlls/qedit/main.c

   1 /*              DirectShow Editing Services (qedit.dll)
   2  *
   3  * Copyright 2008 Google (Lei Zhang)
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include "qedit_private.h"
  21 #include "rpcproxy.h"
  22 #include "wine/debug.h"
  23
  24 WINE_DEFAULT_DEBUG_CHANNEL(qedit);
  25
  26 static HINSTANCE instance;
  27
  28 BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpv)
  29 {
  30     switch(fdwReason) {
  31         case DLL_PROCESS_ATTACH:
  32             instance = hInstDLL;
  33             DisableThreadLibraryCalls(hInstDLL);
  34             break;
  35         case DLL_PROCESS_DETACH:
  36             break;
  37     }
  38     return TRUE;
  39 }
  40
  41 /******************************************************************************
  42  * DirectShow ClassFactory
  43  */
  44 typedef struct {
  45     IClassFactory ITF_IClassFactory;
  46
  47     LONG ref;
  48     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  49 } IClassFactoryImpl;
  50
  51 struct object_creation_info
  52 {
  53     const CLSID *clsid;
  54     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, LPVOID *ppObj);
  55 };
  56
  57 static const struct object_creation_info object_creation[] =
  58 {
  59     { &CLSID_MediaDet, MediaDet_create },
  60     { &CLSID_SampleGrabber, SampleGrabber_create },
  61 };
  62
  63 static HRESULT WINAPI
  64 DSCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPVOID *ppobj)
  65 {
  66     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  67
  68     if (IsEqualGUID(riid, &IID_IUnknown)
  69         || IsEqualGUID(riid, &IID_IClassFactory))
  70     {
  71         IClassFactory_AddRef(iface);
  72         *ppobj = This;
  73         return S_OK;
  74     }
  75
  76     *ppobj = NULL;
  77     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  78     return E_NOINTERFACE;
  79 }
  80
  81 static ULONG WINAPI DSCF_AddRef(LPCLASSFACTORY iface)
  82 {
  83     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  84     return InterlockedIncrement(&This->ref);
  85 }
  86
  87 static ULONG WINAPI DSCF_Release(LPCLASSFACTORY iface)
  88 {
  89     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
  90
  91     ULONG ref = InterlockedDecrement(&This->ref);
  92
  93     if (ref == 0)
  94         CoTaskMemFree(This);
  95
  96     return ref;
  97 }
  98
  99 static HRESULT WINAPI DSCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj)
 100 {
 101     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 102     HRESULT hres;
 103     LPUNKNOWN punk;
 104
 105     TRACE("(%p)->(%p,%s,%p)\n",This,pOuter,debugstr_guid(riid),ppobj);
 106
 107     *ppobj = NULL;
 108     hres = This->pfnCreateInstance(pOuter, (LPVOID *) &punk);
 109     if (SUCCEEDED(hres)) {
 110         hres = IUnknown_QueryInterface(punk, riid, ppobj);
 111         IUnknown_Release(punk);
 112     }
 113     return hres;
 114 }
 115
 116 static HRESULT WINAPI DSCF_LockServer(LPCLASSFACTORY iface, BOOL dolock)
 117 {
 118     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 119     FIXME("(%p)->(%d),stub!\n",This,dolock);
 120     return S_OK;
 121 }
 122
 123 static const IClassFactoryVtbl DSCF_Vtbl =
 124 {
 125     DSCF_QueryInterface,
 126     DSCF_AddRef,
 127     DSCF_Release,
 128     DSCF_CreateInstance,
 129     DSCF_LockServer
 130 };
 131
 132
 133 /***********************************************************************
 134  *              DllCanUnloadNow (QEDIT.@)
 135  */
 136 HRESULT WINAPI DllCanUnloadNow(void)
 137 {
 138     return S_OK;
 139 }
 140
 141 /*******************************************************************************
 142  * DllGetClassObject [QEDIT.@]
 143  * Retrieves class object from a DLL object
 144  *
 145  * PARAMS
 146  *    rclsid [I] CLSID for the class object
 147  *    riid   [I] Reference to identifier of interface for class object
 148  *    ppv    [O] Address of variable to receive interface pointer for riid
 149  *
 150  * RETURNS
 151  *    Success: S_OK
 152  *    Failure: CLASS_E_CLASSNOTAVAILABLE, E_OUTOFMEMORY, E_INVALIDARG,
 153  *             E_UNEXPECTED, E_NOINTERFACE
 154  */
 155
 156 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
 157 {
 158     unsigned int i;
 159     IClassFactoryImpl *factory;
 160
 161     TRACE("(%s,%s,%p)\n", debugstr_guid(rclsid), debugstr_guid(riid), ppv);
 162
 163     if ( !IsEqualGUID( &IID_IClassFactory, riid )
 164          && ! IsEqualGUID( &IID_IUnknown, riid) )
 165         return E_NOINTERFACE;
 166
 167     for (i=0; i < sizeof(object_creation)/sizeof(object_creation[0]); i++)
 168     {
 169         if (IsEqualGUID(object_creation[i].clsid, rclsid))
 170             break;
 171     }
 172
 173     if (i == sizeof(object_creation)/sizeof(object_creation[0]))
 174     {
 175         FIXME("%s: no class found.\n", debugstr_guid(rclsid));
 176         return CLASS_E_CLASSNOTAVAILABLE;
 177     }
 178
 179     factory = CoTaskMemAlloc(sizeof(*factory));
 180     if (factory == NULL) return E_OUTOFMEMORY;
 181
 182     factory->ITF_IClassFactory.lpVtbl = &DSCF_Vtbl;
 183     factory->ref = 1;
 184
 185     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
 186
 187     *ppv = &(factory->ITF_IClassFactory);
 188     return S_OK;
 189 }
 190
 191 /***********************************************************************
 192  *              DllRegisterServer (QEDIT.@)
 193  */
 194 HRESULT WINAPI DllRegisterServer(void)
 195 {
 196     return __wine_register_resources( instance );
 197 }
 198
 199 /***********************************************************************
 200  *              DllUnregisterServer (QEDIT.@)
 201  */
 202 HRESULT WINAPI DllUnregisterServer(void)
 203 {
 204     return __wine_unregister_resources( instance );
 205 }